Does It Pay to Be Jealous?

I was reading this article on Cosmopolitan (US issue) and find it quite interesting.. Quoted from the mag:

"Jealousy can be dangerous in large doses, but a small amount can ignite passion in a relationship and make partners feel wanted amd valued," says Denver psychologist Jennifer Oikle, PhD. Simply put, getting a little worked up when some chick hits on your man says you care. Not only that, but calling your guy out on a borderline-inappropiate remark ("A female trainer at my gym has a crush on me") lets him know that you're on high alert and philandering isn't gonna fly. Certain guys will cheat no matter what you do, but others will act only after convincing themselves that you no longer give a damn. Acting too nonchalantly may be all justification some dudes need.

The tricky part is voicing your concern without sounding like a raging bitch. "If you're not the type to overreact and something's not sitting right with you, calmly confront him," suggests Bob Berkowitz, PhD, author of What Men Won't Tell You but Women Need to Know. Without jumping down his throat, tell him his comment or behaviour unnerved you, and ask if he's attracted to the woman in question. Even if the answer is yes, all is not lost. Opening up a dialouge can save a relationship before the damage is irreversible.